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#include "pch.h"
#include "vcpkg_Files.h"
#include "vcpkg_System.h"
namespace vcpkg::Files
{
static const std::regex FILESYSTEM_INVALID_CHARACTERS_REGEX = std::regex(R"([\/:*?"<>|])");
struct RealFilesystem : Filesystem
{
virtual Expected<std::string> read_contents(const fs::path& file_path) const override
{
std::fstream file_stream(file_path, std::ios_base::in | std::ios_base::binary);
if (file_stream.fail())
{
return std::errc::no_such_file_or_directory;
}
file_stream.seekg(0, file_stream.end);
auto length = file_stream.tellg();
file_stream.seekg(0, file_stream.beg);
if (length > SIZE_MAX)
{
return std::errc::file_too_large;
}
std::string output;
output.resize(static_cast<size_t>(length));
file_stream.read(&output[0], length);
file_stream.close();
return std::move(output);
}
virtual Expected<std::vector<std::string>> read_all_lines(const fs::path& file_path) const override
{
std::fstream file_stream(file_path, std::ios_base::in | std::ios_base::binary);
if (file_stream.fail())
{
return std::errc::no_such_file_or_directory;
}
std::vector<std::string> output;
std::string line;
while (std::getline(file_stream, line))
{
output.push_back(line);
}
file_stream.close();
return std::move(output);
}
virtual fs::path find_file_recursively_up(const fs::path & starting_dir, const std::string & filename) const override
{
fs::path current_dir = starting_dir;
for (; !current_dir.empty(); current_dir = current_dir.parent_path())
{
const fs::path candidate = current_dir / filename;
if (fs::exists(candidate))
{
break;
}
}
return current_dir;
}
virtual std::vector<fs::path> recursive_find_all_files_in_dir(const fs::path & dir) const override
{
std::vector<fs::path> ret;
fs::recursive_directory_iterator b(dir), e{};
for (; b != e; ++b)
{
ret.push_back(b->path());
}
return ret;
}
virtual std::vector<fs::path> non_recursive_find_all_files_in_dir(const fs::path & dir) const override
{
std::vector<fs::path> ret;
fs::directory_iterator b(dir), e{};
for (; b != e; ++b)
{
ret.push_back(b->path());
}
return ret;
}
virtual void write_all_lines(const fs::path & file_path, const std::vector<std::string>& lines) override
{
std::fstream output(file_path, std::ios_base::out | std::ios_base::binary | std::ios_base::trunc);
for (const std::string& line : lines)
{
output << line << "\n";
}
output.close();
}
virtual void rename(const fs::path & oldpath, const fs::path & newpath) override
{
fs::rename(oldpath, newpath);
}
virtual void remove(const fs::path & path) override
{
fs::remove(path);
}
virtual bool exists(const fs::path & path) const override
{
return fs::exists(path);
}
virtual bool is_directory(const fs::path & path) const override
{
return fs::is_directory(path);
}
virtual bool is_regular_file(const fs::path & path) const override
{
return fs::is_regular_file(path);
}
virtual bool is_empty(const fs::path & path) const override
{
return fs::is_empty(path);
}
virtual bool create_directory(const fs::path & path, std::error_code & ec) override
{
return fs::create_directory(path, ec);
}
virtual void copy(const fs::path & oldpath, const fs::path & newpath, fs::copy_options opts) override
{
fs::copy(oldpath, newpath, opts);
}
virtual void copy_file(const fs::path & oldpath, const fs::path & newpath, fs::copy_options opts, std::error_code & ec) override
{
fs::copy_file(oldpath, newpath, opts, ec);
}
};
Filesystem & get_real_filesystem()
{
static RealFilesystem real_fs;
return real_fs;
}
bool has_invalid_chars_for_filesystem(const std::string& s)
{
return std::regex_search(s, FILESYSTEM_INVALID_CHARACTERS_REGEX);
}
void print_paths(const std::vector<fs::path>& paths)
{
System::println("");
for (const fs::path& p : paths)
{
System::println(" %s", p.generic_string());
}
System::println("");
}
}
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